A new study has pointed out that people who have chronic insomnia could be at higher risk of dementia. One of the best things a person can do to recover from a tiring day, whether it is from a stressful day or after a tiring workout. However, it is not easy for everyone, there are many people who suffer with sleep problems like chronic insomnia. An estimate of 16.2% of people around the globe suffer with insomnia according to 2025 Sleep Medicine Reviews, which is a condition that makes it hard to fall or stay asleep. A big number of these people have what's called chronic insomnia, meaning they've had this problem for at least three months, with poor sleep happening three or more nights a week. Previous studies have already connected insomnia to serious health problems like heart disease and diabetes. But now, a new study in the medical journal Neurology has found an even more concerning link: people with chronic insomnia might be at a much higher risk for developing dementia and other memory problems. The study suggests that their brains could be aging faster as a result. How Does Insomnia Cause Dementia? For this study, researchers followed 2,750 older adults for an average of five and a half years. At the beginning, everyone was mentally healthy. The researchers found that the people who had chronic insomnia had a 40% higher chance of developing dementia or mild cognitive impairment (MCI). Researchers explain that this is a huge finding because it means chronic insomnia could be a bigger risk factor for memory loss than having both high blood pressure and diabetes. They also discovered that those who slept less had more of the tell-tale signs of Alzheimer's disease in their brains, like amyloid plaques, and other signs of damage to their brain's blood vessels. This shows that poor sleep isn't just about feeling tired—it's linked to real, physical changes in the brain. Why You Should Prioritize Sleep? Experts believe that a big part of the problem is that insomnia is often overlooked. Many older adults just assume that bad sleep is a normal part of getting older. However, doctors stress that chronic insomnia is a real medical issue that goes beyond typical age-related changes. They urge doctors to start talking to their patients about their sleep habits during every check-up. The good news is that chronic insomnia is a treatable condition. The main treatment is a type of talk therapy called Cognitive Behavioral Therapy for Insomnia (CBT-I). The hope is that by recognizing and treating insomnia, doctors can help protect a person's brain health for years to come. How Does Insomnia Affect Our Memory Previous studies have shown that our cognitive abilities are affected by how much we sleep. A 2020 study published in the Journal of Neuroinflammation, explained that there is a strong connection between a person's sleep and their risk of developing Alzheimer's. We know that sleep is crucial for learning and creating memories. Studies have found that a lack of sleep and conditions like insomnia are not just a symptom of Alzheimer's—they may also play a role in its development. This means that sleep disorders can have a significant impact on whether someone gets Alzheimer's and how fast the disease progresses. Because of this, it's important for doctors to pay more attention to sleep issues when diagnosing and treating patients. By properly screening for and managing sleep disorders, we might be able to help prevent or slow down the progression of Alzheimer's disease.
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